NSK KOYO NTN SF4831PX1 Excavator Bearing 240x310x33.4mm

Bore Size: 240 mm

Outside Diameter: 310 mm

Model Number: NSK KOYO NTN SF4831PX1 Excavator Bearing 240x310x33.4mm

Customization:

Customized logo(Min. Order: 1 Pieces)

Customized packaging(Min. Order: 1 Pieces)

Product Description

NSK KOYO NTN SF4831PX1 Excavator Bearing 240x310x33.4mm

The SF4831PX1 bearing is an essential component in excavators, primarily installed in the swing and travel motors. These motors are responsible for the excavator’s rotation and movement, which require strong and durable bearings to handle demanding working conditions. The SF4831PX1 is engineered to withstand both heavy radial and axial loads that occur during continuous rotation and high-impact digging operations. With its precision design and high-strength material, this bearing ensures smooth torque transmission and minimizes vibration, resulting in more stable equipment performance. It also plays a key role in reducing wear and energy loss under load, improving overall mechanical efficiency. Whether in mining, construction, or roadwork applications, the SF4831PX1 provides long service life, reliability, and consistent performance even under harsh environments.

Part NO.	ID(mm)	OD(mm)	H(mm)
184BA-2251	184	226	21
180BA-2256	180	225	22
AC5033	250	330	37
AC5836	289	355	34
AC463240	230	320	40
AC4615	230	300	35
AC4629	230	290	27
AC4531	225	315	36
AC4631	230	310	40
AC423040-1	210	300	40
AC4630	230	300	35
AC6037-1	300	370	34
AC523438-1	260	340	38
BA152-2306	152	230	26
BA222-1WSA	222	273	26
BA220-6SA	220	276	26
BA220-6WSA	220	276	26
BA240-3ASA	240	310	32
BA289-1A	289	255	34
BA260-3A	260	340	38
BA260-4A	260	340	38
BA200-10	200	280	38
BA230-7T12SA	230	300	35
BA4531	225	315	40
BA300-5A	300	380	40
BA180-4WSA	180	250	33
200BA27V-2	200	270	33
210BA29V	210	295	35
230BA27V2	230	300	35
BA280-2SA	280	370	40
BA300-4WSA	300	395	52
BD130-1SA	130	166	34
BA205-1A	205	295	40
BA246-2A	246	313	32
BA250-4A	250	330	37
BA290-3A	290	380	42
120BA16	120	165	22
180BN19	180	250	33
B-SF4454PX1	220	295	33
B-SF4444PX1	220	295	33
SF4815VPX1	240	310	34
SF4831PX1	240	310	33.4
SF4852PX1	240	310	33
SF4826PX1	240	310	33
SF3607PX1	180	225	15
SF2812PX1	140	175	17.5
SF3227PX1	160	200	20
SF3235PX1	160	200	20
SF4007PX1	200	250	25
SF4019PX1	200	260	30
SF4860PX1	240	320	38.6
SF6037-1	300	370	34
SF6015PX1	300	372	36
260BA355-2	260	355	44
CR4411PX1	220	290	32
CR6016PX1	300	380	38
BA230-7T12SA	230	300	35
LL639249/10	196.85	241.3	23.812
L540049/10	196.85	254	28.575
LM739749	196.85	257.175	39.688
544090/116	228.6	295.275	33.338
544091/118	231.775	300.038	33.338
L540048/10	200	254	28.575
561904P6X	120	170	27
36990/20	177.8	227.012	30.165
4T-T7FC065ST	65	130	37
4T-T7FC055ST	55	115	34
T2ED045-1	45	95	36
R196Z-4	196.85	241.3	23.812
AC563946AB	280	390	46
SF5235	260	330	35
AC4833
HS05154	126	154	14
AC563946AB	280	390	46
BN220-1	220	280	28
BD130-16	130	166	40
310BN420	420	310
BA345-1	345	470	45
BA195-3A	195	280	36.5
BD155-3A
BD155-4A	250	330	37
BD155-5A	165	210	54
BD155-6A	155	198	47
BA120-7	230	300	35

Shandong Tefule Bearing Co.,Ltd
is a professional bearing manufacturer and dealer in china.We have been engaged in bearing industry for 10 years and made international trade of bearing import and export for more than 8 years.We have our own brand “TFL” and applied ISO9001:2000 certificate for certification authority.We attend international bearing fairs, put in many B2B website and achieve many customers all over the world also bulid up good reputation from our customers.
Our company is specialized in ball bearing,roller bearing,housing units, wheel hub bearing,bearing parts and accessories, cross roller bearing.Also we can customize various large non-standard products such as the most competitive products according to customers’ demands.

FAQ1: How to identify genuine NSK/KOYO/NTN SF4831PX1 bearings?
Check the laser marking on the bearing surface, packaging label, and brand logo. Genuine bearings have clear markings, high-quality finishing, and consistent packaging. Always buy from authorized distributors.
FAQ2: Why is SF4831PX1 suitable for swing and travel motors?
It offers high load capacity, precise internal clearance, and strong impact resistance. These features allow it to perform reliably in high-torque and heavy-duty excavator applications.
FAQ3: What lubrication extends the life of SF4831PX1 bearings?
Use high-temperature, anti-wear lithium or calcium-based grease. Regular lubrication prevents metal contact and extends service life under harsh working conditions.
FAQ4: How to replace SF4831PX1 excavator bearings properly?
Clean the housing and shaft, apply proper grease, and press the bearing evenly using a fitting tool. Avoid hammering or forcing it. Check for correct alignment before reassembly.